3D Printing Digital Marketplace

Discover the latest 3D models for 3D printing designed by Carlos The Inventor

Featured Design


Sound Amplifying Phone Holder

The 3D printed Sound Amplifying Phone Holder is the perfect solution for anyone who wants to listen to music, podcasts and videos on the go.

With its built-in amplifier, this mount provides a high-quality audio experience, perfect for outdoor activities, traveling or just relaxing at home.

The 3D printed design ensures a precise and custom fit for your cellphone, and the hanging feature allows for hands-free usage, freeing up your hands for other activities.


Get access to a Commercial License, ALL of the files you see on this site and future releases when you sign up for my Patreon for only $10 per month >>> https://patreon.com/carlostheinventor

What’s up Creator!

Welcome to my 3D printing digital marketplace!

I’m thrilled that you’re here, and I hope that you find something that you love in my collection of 3D printable designs. Every file that I’ve created has been carefully designed to be useful enough to be sold, and I’m excited to share them with you.

I’ve put a lot of time and effort into designing these products, and I’m passionate about bringing my ideas to life through 3D printing. My goal is to inspire others to explore the possibilities of this incredible technology, and to help them bring their own ideas to life.

So take a look around, browse my collection, and if you have any questions or feedback, please don’t hesitate to reach out. Thank you for supporting my work, and for being a part of this amazing community of creators!

Frequently Asked Questions


Am I allowed to sell physical versions your files?

Great question creator! If you’re interested in selling my digital files, you will need to sign up for a commercial license on my Patreon for $10 per month.


As an active supporter, you will have access to a Commercial License that will allow you to legally sell physical prints of any of my designs.

However, it’s important to note that once you cancel your subscription, the commercial license will expire.

…But wait that’s not all ;D

When you sign up for my Patreon you will get access to ALL of the files you see here on this website!!!  htps://shop.protomac.com

and there’s even more! check out my Patreon to see all of the benefits 😀



By downloading these digital files, you acknowledge and agree that these files are protected by copyright laws and are the property of Protomac Corporation/Carlos The Inventor. You are NOT allowed to sell, remix, modify, resell, or list these digital files for free.

However, you may sell physical 3D printed versions of the files after obtaining a Commercial License from Carlos The Inventor on Patreon. The Commercial License allows you to legally sell PHYSICAL prints of any of the designs for personal or commercial use.

Please note that the Commercial License does NOT allow you to create molds for mass manufacturing or any similar activity. Any unauthorized use of these digital files is strictly prohibited and may result in legal action.

By downloading and using these files, you acknowledge and agree to these terms and conditions. If you do not agree to these terms, please do not download or use these files.

What types of files do you design?

I love creating items that are not only functional but also have a playful and creative touch that makes them stand out from regular objects.

I used to spend hours looking for 3D printing files to make, but I never really found anything worth my time.

That’s why I went on a mission to create designs that people would actually use and enjoy.

So, you’ll find designs for all sorts of things, including office accessories, living room decorations, bedroom gadgets, bathroom items, and more.

Joining my Patreon community also gives you the opportunity to suggest designs that you would like to see in the future, so you can have a say in what I create next.

How often do you design files?

Thanks for your interest in my designs! I usually try to create 3 to 4 new files per month, but it may vary depending on my schedule. Also, my Patreon supporters get to have a say in what designs I work on first, so if you become a member, you can influence the direction of my work.

Do you offer refunds on Digital Products?

ALL sales are final. All files have been tested and I made sure the files print without any problems. 

I do not offer refunds on digital products as once the files have been downloaded, I cannot retrieve them.

However, if you are experiencing any technical difficulties with the files, please contact me and I will do my best to assist you.

How do I download the Digital Files?

Once you complete the payment process, you’ll be able to download the digital files right away.

The download link will appear on the order confirmation page and in the confirmation email that you receive.

Additionally, if you create an account on our website, you’ll be able to access your purchased files anytime by logging in and going to your account.

Simply click on “Downloads” and you’ll see all your purchased files available for download.

If you have any trouble accessing your files, please feel free to contact us and we’ll be happy to help.

I Lost my digital files, can I download them again?

If you created an account on our website, you can access your downloaded files anytime by clicking on “Account” and then “Downloads.”

If you did not create an account, please contact us with your order information, and we will do our best to assist you in retrieving your files.